 var initialSize = 0;
  var leftsize = 0;
  function moveRight(id){
	 var className="#"+id;
	 var Divnum=$(className).children('.su_Say1').length;
     var saywidth=895*Divnum;  
     leftsize= $(className).position().left;
     $(className).width(saywidth);
     var saywidthnum = - saywidth + 895
     
	 if(leftsize > saywidthnum){
	     leftsize = leftsize - 895;
         $(className).animate({"left":leftsize},290);
	 }else {
	    $(className).css('left','0');
	 }
 }
 function moveLeft(id){ 
     var className="#"+id;
	 var Divnum=$(className).children('.su_Say1').length;
     var saywidth=895*Divnum;  
     leftsize= $(className).position().left;
     $(className).width(saywidth);
     var saywidthnum = - saywidth + 895
     if(leftsize == 0){
	
	       $(className).css('left','0');
     }
	 else if(leftsize >= saywidthnum){
	
	     leftsize = leftsize + 895;
	     
         $(className).animate({"left":leftsize},290);
	 }
	 
 }